It presents the development and functionality of an information system for the control of inventories, billing and suppliers of a small company in the hardware sector which has been in the market for more than 25 years, this presents a serious flaw in terms of its inventory and its available stocks, which shows a significant loss of customers and a little or nothing defined approach. Thus reaching field inspections to collect information with which the creation of databases for the system developed in VBA was made, completing all the proposed phases and thus reaching a more solid and orderly structure to the management of the products offered to customers and opening the way to the opportunity to define and update the approach of the organization.